#正则提取信息，保存文件top100.txt
import requests,re,json

def get_one_page(url):
    try:
        headers={
            'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/76.0.3809.132 Safari/537.36',
        }
        r=requests.get(url,headers=headers)
        if r.status_code==200:
            return r.text
        return None
    except Exception as e:
        print(e)
        return None

def parse_to_page(html):
    # pattern=re.compile('<dd>.*?board-index.*?>(\d+)</i>.*?data-src="(.*?)".*?name"><a.*?>(.*?)</a>.*?star">(.*?)</p>.*?releasetime">(.*?)</p>.*?integer">(.*?)</i>.*?fraction">(.*?)</i>.*?</dd>',re.S)#崔庆才的课程代码，正则表达式
    pattern=re.compile('<dd>.*?board-index.*?>(\d+)</i>.*?data-src="(.*?)".*?title.*?">(.*?)</a>.*?(主演.*?)</p>.*?(上映时间.*?)</p>.*?integer">(.*?)</i>.*?fraction">(.*?)</i>.*?</dd>',re.S)
    items=re.findall(pattern,html)
    for item in items:
        yield{
            'index':item[0],
            'image':item[1],
            'title':item[2],
            'actor':item[3].strip(),
            'time':item[4],
            'score':item[5]+item[6],
        }

def save_file(t_dict):
    with open('top100.txt','a',encoding='utf8')as f:
        f.write(json.dumps(t_dict,ensure_ascii=False)+'\n')


def main(i):
    url='https://maoyan.com/board/4?offset={}'.format(i)
    html=get_one_page(url)
    for item in parse_to_page(html):
        print(item)
        save_file(item)

if __name__ == "__main__":
    for i in range(10):
        main(i*10)